<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport"
        content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <button>+1</button>
  <script>
    // h5提供的新的操作地址的api window.history
    history.pushState()
    history.replaceState()

    history.forward()
    history.back()


  </script>
</body>
</html>
